gnash the teeth with angry looks
Angry is a Chinese idiom, Pinyin is n ù m ù Qi è ch ǐ, describes extreme resentment.
explain
Glaring: the look of glaring; incising: clenching teeth.
source
Liu Ling, Jin Dynasty, wrote in his ode to wine: "when I heard the news about me, I talked about the reason, but I worked hard to stir Jin up and glared at her teeth."
Examples
Speaking of these, the old Zhuang people and two or three young Zhuang people are very happy. The Zhuang and me by Qin Mu
usage
As predicate, attributive, adverbial; describe the extreme of resentment
gnash the teeth with angry looks